SR489-P1-HI-A20-E  |  发电机管理继电器  |  提供具有成本效益的保护和控制

型号：SR489-P1-HI-A20-E

模拟电流输入电源； +24 V DC （最大 100 mA）

电能计量更新率； 50 毫秒

防护等级； IEC60529标准

IRIG-B DC 移位： TTL的

输出/中性线电流输入转换范围 0.02 至 20 × CT

相位差分曲线形状： 双斜率

继电器运行时间： 10 毫秒

电压相位反转定时精度： 200 至 400 ms

SR489-P1-HI-A20-E是一款Multilin公司的489发电机管理继电器。本机具有 1A 相 CT 输入，控制电压为 20 至 60VDC 或 20 至 48 VAC @ 48-62 Hz。该装置具有大型 LCD 增强显示屏和 4-20 mA 模拟输入。

作为GE的SR系列继电器的一部分，SR489-P1-HI-A20-E提供具有成本效益的保护和控制，并配有先进的通信功能。该装置设计用于与中小型发电机配对，以提供保护并减少故障排除时间。该装置易于使用，并提供用于振动监测的模拟输入以及用于轴承热保护的 RTD。

SR489-P1-HI-A20-E有一个大而易于阅读的前面板，顶部边缘有一个 40 个字符的显示屏。此显示允许用户查看设定值和实际值消息以及诊断和默认消息。前面板配有数字键盘、值上下键、程序端口接口、多个状态指示灯以及控制和编程键。前面板的底部边缘包括一个拉出手柄，该手柄可以安装导线密封件，以防止未经授权的拆卸。

Model: SR489-P1-HI-A20-E

Analog current input power supply; +24 V DC (Max 100 mA)

Energy metering renewal rate; 50 ms

Protection level; IEC60529 standard

IRIG-B DC shift: TTL

Output/neutral current input conversion range 0.02 to 20 × CT

Phase difference curve shape: double slope

Relay running time: 10 ms

Voltage phase inversion timing accuracy: 200 to 400 ms

The SR489-P1-HI-A20-E is a Multilin 489 generator management relay. The unit has a 1A phase CT input with a control voltage of 20 to 60VDC or 20 to 48 VAC @ 48-62 Hz. The unit features a large LCD enhanced display and 4-20 mA analog input.

Part of GE's SR family of relays, the SR489-P1-HI-A20-E provides cost-effective protection and control with advanced communication capabilities. The unit is designed to be paired with small and medium-sized generators to provide protection and reduce troubleshooting time. The unit is easy to use and provides analog inputs for vibration monitoring as well as RTDS for bearing thermal protection.

The SR489-P1-HI-A20-E has a large, easy-to-read front panel with a 40-character display on the top edge. This display allows users to view set and actual value messages as well as diagnostic and default messages. The front panel is equipped with a numeric keypad, value up and down keys, program port interfaces, multiple status indicators, and control and programming keys. The bottom edge of the front panel includes a pull-out handle that can be fitted with a wire seal to prevent unauthorized removal.